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	1.	Progress of farm mechanization / by Martin R. Cooper, Glen T. Barton, and Albert P. Brodell. by Cooper, M. R. (Martin Reese), 1887- Barton, Glen T Brodell, Albert P. (Albert Perry), 1895- Series: Miscellaneous publication (United States. Department of Agriculture) ; no. 630. Material type: Text; Format: print ; Literary form: Not fiction Publication details: Washington, D.C. : U.S. Dept. of Agriculture, 1947 Availability: No items available. Add to cart (remove)
	2.	Farm output : past changes and projected needs / [by Glen T. Barton and Robert O. Rogers]. by Barton, Glen T Rogers, Robert O. (Robert Oliver), 1921- Series: Agriculture information bulletin ; no. 162 Material type: Text; Format: print ; Literary form: Not fiction Publication details: Washington, D.C. : U.S. Dept. of Agriculture, Agricultural Research Service, 1956 Availability: No items available. Add to cart (remove)

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